JP5671333B2 - Chair - Google Patents

Description

  The present invention relates to a chair covering at least a back plate or a seat plate with a skin material.

  In a chair, when the backrest or seat has a structure in which a cushion is stretched on a board (back board / seat board), the cushion is covered with a skin material, and the edge of the skin material is attached to the back board or the seat board. . As a means for attaching the skin material, it is fixed with a drive-in type tucker, a string is attached to the outer periphery of the skin material, and this string is locked to a protrusion provided on the back plate or the seat plate, or the outer periphery of the skin material A belt-like edge member is fixed to the portion, and the edge member is fitted into a slot formed in the back plate or the seat plate.

  On the other hand, for example, in the backrest, the back cushion is wound around the back side of the back plate. As an example, Patent Document 1 discloses that the upper end portion of the back cushion is curled backward. And in this patent document 1, as a means to hold | maintain the curl part of a back cushion, an attachment piece is fixed to the inner surface of the curl part in a back cushion, and the protrusion provided in this attachment piece is made into the locking hole provided in the backplate. It is disclosed to fit.

JP 2002-136383 A

  As described above, the cushion is covered with a skin material such as cloth or leather. Therefore, when the upper part of the back cushion is curled as in Patent Document 1, the skin material enters the inside of the curled portion, but the method of entering the skin material into the curled portion tends to vary depending on the way of work. Therefore, the shape is not constant, such as sagging or swelling, and there is a concern that the appearance may deteriorate.

  In addition, while the skin material is manufactured using a flat cloth or leather, the curl portion has different circumferential lengths on the outer periphery and the inner periphery, so the skin material is wrinkled at the end surface portion of the curl portion. It is inevitable. There is also a concern that the shape of the heel will vary depending on the tension of the skin material, the way of bending the back cushion, etc., and the appearance of the heel will deteriorate due to the concentration of the heel in some places.

  The present invention has been made in view of such a current situation, and is intended to be able to treat the skin material beautifully when the curled skin material is fitted into the recess and attached.

  The present invention has a back plate or a seat plate and a skin material covering the back plate or the seat plate from the body pressure support surface side, and the outer peripheral edge of the back plate or the seat plate is entirely or partially held by the skin material. The chair that is being held. In this chair, a pair of recesses opened in the outer circumferential direction of the back plate or the seat plate is formed by forming a curled portion having a U-turn on the back plate or the seat plate on the side opposite to the body pressure support surface. And the skin material enters the recess from the body pressure support surface side, and also enters the recess from the curled portion side. An edge member that enters the inside of the recess is attached, and the edge member is attached to the inner surface of the recess.

The invention of claim 2 embodies claim 1, and in this invention, the edge member is a strip-shaped resin edge plate provided with a catch hole on the back plate or seat plate. the inner surface of the recess is provided with catch projections catching hole of the edge plate disengaged fit.

The invention of claim 3 applies the invention of claim 1 or 2 to the backrest. That is, according to the present invention, the curled portion is formed at the upper end portion of the back plate, the recess is opened to the left and right outer sides, the back cushion and the skin material are also curled, and the curled portion of the back plate is moved from the rear side. while covering, said skin material is formed line-shaped darning portion extending along the side edges of the back plate through an opening edge of the recess, along the recess of the skin material A wrinkle is preliminarily placed on the curled portion and the portion located outside the recess with the overhanging portion interposed therebetween .

  In claim 3, the bag can be called a bag or a gather. Further, the overlock portion refers to a portion whose rigidity is increased by sewing a separate cloth or overlock. As the structure of the overburden portion, it is possible to sew a piece of tape.

  In the present invention, since the edge member is attached to the inner surface of the recess, the skin material is stretched so as to overlap the inner surface of the recess, and the position of the edge plate is fixed by the edge member. Regardless of the condition, the tension of the skin material becomes constant, so that it can be finished with good appearance. Further, the surface of the skin material at the curled portion can be made uniform, and the skin material can also be treated in this manner.

  Various materials such as wire rods and strings can be used as the edge member. However, if a strip-shaped resin edge plate is used as in claim 2, the edge plate has a waist so that the shape retaining function of the skin material can be demonstrated more accurately. There are advantages you can do. Further, since the edge plate has a simple attachment structure in which the engagement hole is fitted into the protrusion, it can be easily attached and detached.

  The skin material may be a configuration in which an edge member such as an edge plate is attached to the edge portion. However, if the overburden portion is provided as in claim 3 and the ridge (gather) is formed in advance, the skin material Can be reliably held in a uniform state.

It is the external view of a chair, (A) is the perspective view seen from the front, (C) is the perspective view seen from the back, (B) is a side view. It is a separation perspective view of a chair. It is the external view of the backrest in the state which abbreviate | omitted the cushion, (A) is the perspective view seen from the front, (B) is a side view, (C) is the perspective view seen from back. It is the isolation | separation perspective view which looked at the backrest from back. (A) is a separated perspective view of a top member, a main member, and a back support, (B) is a separated perspective view of a main member and a back support. (A) is a partial rear view of the main member, (B) is a partial perspective view of the main member as seen from the rear, (C) is a partial front view of the end of the cushion, and (D) is a plan view showing how the cushion is attached. It is sectional drawing. (A) is a partial front view of the back support, (B) is a partial perspective view of the back support as seen from the front, (C) is a partial front view of the end portion of the back seat, and (D) is an attachment mode of the back seat. FIG. (A) is a sectional side view of the backrest at the left and right center, (B) is a perspective view of the side end of the top member, and (B) is a bottom view of the side end of the top member. (A) is a side view of the main part (upper part of the backrest) , (B) is a sectional view taken along the line B-B of (A), and (C) and (D) are schematic cross-sectional views of the overhanging part. (A)-(C) are figures which show 2nd Embodiment, (A) is a schematic side view, (B) is BB sectional drawing of (A), (C) is explanatory drawing of an effect | action. (D) is a schematic side view of 3rd Embodiment, (E) is the EE view sectional drawing of (D).

  Next, an embodiment of the present invention will be described with reference to the drawings. This embodiment is applied to a rotary rocking chair that is frequently used for office work. In this application, the words “front and rear” and “left and right” are used to specify the direction, which is based on the direction of a person seated in a normal posture. The front view is in the direction facing the seated person.

(1). Outline of Chair First, an outline of a chair will be described with reference mainly to FIGS. As shown in FIG. 1, the chair includes a leg 1, a seat 2, and a backrest 3 as major elements. Although the leg 1 has branch legs extending in the radial direction, the illustration is omitted, and only the leg support 4 made of a gas cylinder is shown. A base 5 is fixed to the upper end of the leg column 4, and a seat 2 is disposed above the base 5.

As shown in FIG. 2, the seat 2 is formed of a resin seat inner shell (seat plate) 6 and taut seat cushion 7 for the upper surface thereof, the intermediate support 8 shown in FIG. 2 and 3, before and after Installed to be position adjustable. The front portion of the intermediate support 8 is connected to the front portion of the base 5 via the front link 9, and the front link 9 rotates relative to both the base 5 and the intermediate support 8 in a side view. . Therefore, when the front link 9 rotates, the intermediate support 8 and the seat 2 move back and forth while moving up and down.

For example, as shown in FIG. 4, the backrest 3, the seat occupant's body pressure is applied shell shaped back plate (the back inner shell) 10, which has a shell shaped back support 11 attached, FIG. As shown in FIG. 1 , a back cushion 12 is stretched on the front surface of the back plate 10. The back cushion 12 is covered with a skin material 13 such as a cloth from the front . As clearly shown in FIGS. 2 to 4 , the back plate 10 includes two members (parts) including a main member 14 disposed in front of the back support 11 and a top member 15 disposed on the main member 14. Consists of. Both members 14 and 15 are resin molded products.

The front surface of the main member 14 and the front surface of the top member 15 are smoothly continuous. Accordingly, the seated person can hang on without feeling discomfort, like the backrest of the monolithic structure. The top member 15 of the present embodiment has a shape that bends backward and makes a U-turn downward, and thus has a side-view configuration that is approximately close to a downward opening U-shape.

The upper end of the main member 14 and the upper end of the back support 11 in the back plate 10 are substantially the same height, and the top member 15 of the back plate 10 overlaps the upper surface of the back support 11. The top member 15 of the back plate 10 is overhanging so as to go around the upper back of the back support 11. Accordingly, the top member 15 has a curled portion 15a that is curved to the rear side while drawing a smooth curve from the top to the back.

As best shown in FIG. 3, the lower end of the back support 11 has a forward extending pair of arms 16 are formed integrally with the left and right arms 16 are connected by the joint 17 of the portal. Then, the left and right arms 16 are connected to the base 5 so as to tilted backward around the front end portion thereof, and right and left arms 16 is slightly exposed to the bracket 18 (FIG. 1 (B) .) To the rear part of the intermediate support 8. For this reason, when the backrest 3 is tilted backward, the intermediate support 8 and the seat 2 are pulled up by the metal fitting 18 and are raised while moving backward. An elastic body that provides resistance to rocking is disposed at the rear of the base 5.

For example, as can be understood from FIG. 3, the lower end portion of the back support 11 protrudes below the base of the arm 16. A lower cover 19 is attached to the lower back surface of the back support 11. The back support 11 is covered from behind with a back sheet 20 as a skin material, and the lower cover 19 is also covered with the back sheet 20 . As shown in FIG. 1A, a rearward pull-in portion 21 is provided on the upper portion of the skin material 13.

(2). Outline of the backrest Next, the outline of the backrest 3 will be described. For example, as can be understood from FIG. 4, the back support 11 and the main member 14 have a width at the lower end smaller than that at the upper end . Therefore, both have an inverted trapezoidal shape when viewed from the front. For example, as best shown in FIG. 3, the back support 11 and the main member 14, both are curved with bent loose the forward concave in plan view, and, most before the waist hitting portion of Both seated person It is curved in a forward convex shape in side view so as to be positioned.

For example, as shown in FIG. 3, square side ridges 23 projecting forward are formed on the left and right sides of the main member 14, and a square bottom ridge 24 projecting forward is also formed at the lower end of the main member 14. Has been. Both protrusions 23 and 24 are continuous with each other. Both ridges 23, 24 is formed in a channel-like shape opened rearward.

For example, as shown in FIG. 6D, the back cushion 12 is disposed inside the side ridges 23 and the bottom ridges 24. Therefore, the side ridges 23 and the bottom ridges 24 have a reinforcing function and a back. The cushion 12 has a positioning function. A skin material 13 covering the back cushion 12 is wound behind the main member 14, and an edge of the skin material 13 is hidden by the back support 11.

Then, a strip-like edge plate 25 such as a resin plate is sewn on the edge of the skin material 13, while a portion of the back surface of the main member 14 is located slightly inside the ridges 23 and 24. A number of catch projections 26 are formed at appropriate intervals, and catch holes 27 formed in the edge plate 25 are fitted into the catch projections 26. The catch protrusion 26 is formed in a cross shape when viewed from the front, and a bulging portion 26 a for preventing the edge plate 25 from coming off is formed at the tip. Incidentally, the edge plate 25 has been sewn overlapping the entire skin material 13, and therefore, the skin material 13 is in the state mounted digits to the back plate 10 is folded back at a point sewn portion.

As already mentioned, the top member 15 constituting the back plate 10 has a curled portion 15a extending from its upper end behind downward Therefore, the upper portion of the top member 15, the left and right outer side (i.e., body pressure support A side recess 28 opened in a direction perpendicular to the front surface is formed (see, for example, FIGS. 1 to 3) . The back cushion 12 extends upward from the main member 14 and also covers the top member 15. As can be understood from FIG. 8 (C), the skin material 13 is penetrated to the side recess 28 of the top member 15, which is fitted a Enban 25 catch protrusion 26 provided on the bottom surface 28a of the side recess 28 . For this reason, the skin material 13 is held in a stretched state on the outer side of the side recess 28. This point will be described later.

(3) Back support For example, as shown in FIG. 6 (D), the left and right side edges of the back support 11 are side walls 11 'protruding substantially forward, and as shown in FIGS. A horizontally elongated lower rib 30 located behind the bottom protrusion 24 of the main member 14 is projected forward. A number of reinforcing ribs are connected to the lower surface of the lower rib 30. As shown in FIG. 6D, the side wall 11 ′ of the back support 11 is located behind the side protrusion 23 in the main member 14.

As shown in FIGS. 2 and 5, a pair of left and right inner vertical ribs 31 and outer vertical ribs 32 that are continuous with the arm 16 are projected forward on the front surface of the back support 11, and the lower rib 30 is formed on the inner vertical rib 31. Connected. The upper ends of the left and right outer vertical ribs 32 are continuous via the upper horizontal rib 33, and the upper ends of the left and right inner vertical ribs 31 are continuous via the lower horizontal rib 34. The lower horizontal rib 34 is also continuous with the left and right outer vertical ribs 32.

  These ribs 30 to 34 have a reinforcing function and also serve as a stopper that regulates the deformation amount when the back plate 10 is deformed so as to be recessed backward by the body pressure of the seated person. The inner and outer vertical ribs 31 and 32 also function to attach the back plate 10 (the description is omitted because there is no direct relationship with the present invention).

As described above, the back support 11 is covered with the back sheet 20 from behind. As shown in FIGS. 7 (C) and 7 (D), a band edge plate 35 such as a resin plate is sewn on the periphery of the back sheet 20, while catches are formed on the left and right sides of the front surface of the back support 11. Protrusions 36 are projected forward at appropriate intervals in the vertical direction, and catch holes 37 formed in the edge plate 35 are fitted into the catch protrusions 36. The catch projection 36, that is bulging portion 36a for retaining formation. The fixing means of the lower edge of the bar Kkushito 20, are fitted to Enban 35 from below the cavity sandwiched between the bottom and the lower cover 19 of the back support 11.

(4). Means for attaching the main member to the back support Although there is no direct relationship with the present invention, details are omitted, but the top member 15 constituting the back plate 10 is detachable from the main member 14, The main member 14 is detachable from the back support 11. As shown in FIG. 2, left and right outer frame portions 54 are formed at the upper end of the main member 14, and an inner frame portion 56 into which the outer frame portion 54 is fitted is formed at the upper end of the back support 11. .

As shown in FIG. 5B , substantially square positioning protrusions 42 and 43 are provided to project rearwardly on the left and right side portions and the lower portion of the main member 14 . Upper portion positioning projection 42 is fitted into between the pair provided on the back support 11 of the upper clamping member 44, the lower positioning projection 43 is fitted between the inner and outer vertical ribs 31 and 32 in the back support 11 ing.

Collision Further, as means for holding the main member 14 forward immovably, as shown FIG. 5 (B), the outside of the upper positioning projections 42 of the main member 14, the upper engaging member 45 in plan view arrowhead shaped rearwardly while it is set on the front surface of the back support 11, and forms an upper engagement receivers 47 in a plan view L-shaped upper engaging member 45 caught.

For example, as shown in FIG. 5 (B), a lower engaging portion 48 having an arrowhead shape in a plan view is provided rearwardly at the lower end portion below the lower positioning projection 43 in the rear surface of the main member 14, while the back support 11 A pair of left and right lower engagement receiving portions (not shown) with which the lower engagement body 48 engages are provided on the inner surfaces of the inner and outer vertical ribs 31 and 32. An upper engaging claw 60 capable of coming into contact with the upper surface of the inner frame portion 56 of the main member 14 from below is provided at a position directly below the outer frame portion 54 of the main member 14. The upper engaging claw 60 can be bent and deformed to an engagement releasing posture by a lever (not shown) rotatably attached to the inner frame portion 55 of the back support 11.

Figure 5 (A) and 5, as shown in FIG. 8 (A), and the top member 15 and the main member 14 of the back plate 10, engaging consisting male engaging portion 61 and the female engaging section 62 It is held in a state that does not leave by means. An engaging claw 63 is formed in the male engaging portion 61, and an engaging hole 64 is formed in the female engaging portion 62. For example, as shown in FIG. 5A, the top member 15 has left and right top ridges 65, and a boss 66 projecting downward from the left and right top ridges 65 is provided at the upper end of the side ridge 23 in the main member 14. It is inserted in the tube part 67 provided in. Further, as can be understood from FIG. 2 , the side recess 28 of the top member 15 is closed by plugs 69 provided at both left and right ends of the back support 11.

Plug 69 is attached to the ear portion 11a provided in the back support 11, the plug 69 is not used when the height using the lower top member 15, the ear portions 11a enters the side recess 28. Although not shown, the backsheet 20 which covers the back support 11, a pocket portion for covering the plug 69 and the ear portions 11a are formed, Accordingly, the finished good appearance. As shown in FIG. 4, the end of the left and right ridges 65 in the top member 15 is connected by an end ridge 70 provided at the lower end of the curled portion 15a.

(5). Processing structure of the skin material at the location of the side void Next, the processing structure of the skin material 13 at the location of the side recess 28 will be described with reference to FIG. As described above, the pair of catch protrusions 26 are formed on the bottom surface 28 a of the side recess 28. The bulging portion 26a of the catch projection 26 is positioned vertically. The catch protrusion 26 is formed in a shape having a bulging portion 26 a by forming through-holes 72 and 73 that open back and forth in the curled portion 15 a of the top member 15. The side recess 28 is formed using a slide mold.

The edge plate 25 is divided into an appropriate length, and is formed in a vertical length so as to enter the side recess 28 at the side recess 28. Since the divided edge plates 25 are fitted to the upper and lower two catch projections 26, the edge plates 25 are held so as not to move left and right. In this state, the base ends of the edge plates 25 are located in the side recesses 28. By being in contact with or in close contact with the side surface 28 b, the skin material 13 is held in a state of being exactly overlapped with the inner peripheral edge of the side recess 28. For this reason, the skin material 13 is held in a tensioned state.

Note that the edge plate 25 is not necessarily provided in the portion located at the upper end of the side recess 28 in the peripheral edge of the skin material 13 disposed in the side recess 28, but is divided into a short length and attached. it may be Oite Te. As described above, since the plug 69 provided in the back support 11 is fitted in the side recess 28, the skin material 13 is retained by the plug 69 (or the ear portion 11a).

  Since the main member 14 and the top member 15 constituting the back plate 10 are formed with ridges 23, 24, 65, 70, the left and right side surfaces 10a of the back plate 10 are formed into a belt-like flat surface having a certain width. It has become. Further, since the back cushion 12 is surrounded by the ridges 23, 24, 65, and 70, the skin material 13 is held in a state of being overlapped with the outer peripheral surface of the back plate 10. Therefore, the back plate 10 is used as the back cushion. A sharp line is held with the skin 12 and the skin material 13 attached.

The skin material 13 has a line-shaped (or rib-shaped or protruding-shaped) overhang extending along the corner portion 10b where the side surface 10a of the back plate 10 (top member 15) and the opening edge of the side recess 28 are connected. 13a is formed. Since the skin material 13 is curled downward from the upper end, the corner portion 10b extends along the inner periphery of the side recess 28. Therefore, the overhang portion 13a also extends along the opening edge of the side recess 28. Yes.

  The overburden portion 13a may be located at the edge of the side surface 10a of the back plate 10, may overlap the corner portion 10b, or overlap the back surface of the main member 14 and the inner peripheral surface of the side recess 28. It may be. In any case, since the skin material 13 is the same as reinforced at the portion of the overburden portion 13a and the waist is remarkably strong, the overburden portion 13a is positioned so as to extend along the corner portion 10b. As a result, the skin material 13 is held tightly at the side surface of the back plate 10.

Then, as shown in FIG. 9A, a portion of the skin material 13 curled along the upper portion of the side recess 28 (that is, a portion of the skin material 13 that overlaps the side surface 10a of the back plate 10 and curled). ), A flange 74 extending in advance toward the outside of the side recess 28 with the overhanging portion 13a interposed therebetween is formed in advance. In other words, the overburden portion 13a is formed in a state in which the ridge 74 is placed so that the ridge 74 is used. Needless to say, when forming the overburden portion 13a, the wrinkles are made beautifully by wrinkling them evenly.

More specifically, the density of wrinkles is high at the top end, which is the top of the curl, and the number of wrinkles per unit length gradually decreases as you move away from it, so that there is no sense of incongruity. A ridge 74 is formed on the surface. And it has formed in advance the collar 74 in the skin 13 in a beautiful state, the overhang 13a has a shape-retaining function, and the peripheral edge of the skin 13 is the inner surface of the side recess 28. Combined with being held in a state of being exactly overlapped, the skin material 13 can be held in a beautiful state at a location around the side recess 28 regardless of the way of work. Two edge plates 25 are overlapped with the bottom surface 28a of the side recess 28, either of which may be on the back.

In FIG. 9 (C) (D), it shows a specific example of the buttonhole portion 13a. Among these, in the example shown in (C), the entire skin material 13 is composed of a single sheet, and a superposed portion 13c is formed in a portion near the outer periphery thereof, which is attached and held in an overlapping state. In this state, wrinkles also occur at the part to which the edge plate 25 is attached. On the other hand, in the example shown in FIG. 9D, the skin material 13 is composed of a main material 13 ′ and an edge material 13 ″ attached to the outer periphery thereof, and the outer periphery of the main material 13 ′ is folded back. A thick-walled overhanging portion 13a is formed by being attached to the material 13 ″. In this example, since it is not necessary to wrinkle the edge material 13 ″, the sewing work is easy.

As a means for attaching the edge plate 25, the hook 75 as shown in FIG. 9 (B) is formed on both inner side surfaces of the side recess 28 by a plurality of vertical stages, it is also possible to hook the hooks 75 to Enban 25 There is (the hook 75 is also formed by pulling out the mold). Alternatively, other configurations may be adopted. The edge plate 25 may be fixed to the skin material 13 by welding or adhesion.

(6). Other Embodiments Next, second to third embodiments shown in FIG. 10 will be described. In this embodiment, a recess edge plate 77 having a shape substantially similar to the bottom surface of the side recess 28 is used for the side recess 28, and the recess edge plate 77 is in a state where its outer peripheral portion is excluded. A skin material 13 is sewn. On the other hand, a pair (four in total) of stopper pieces 78 project from the front and rear inner side surfaces of the side recess 28 in a state of facing each other, and the edge of the edge plate 77 for the recess is provided at the back of each stopper 78. It is hitting from the side.

  As shown in (C), the recess edge plate 77 is pushed toward the bottom surface 28a of the side recess 28, and the edge portion passes over the stopper piece 78 and is pushed inward, so that the stopper piece 78 is inserted into the stopper piece 78 from the back side. Engage. Therefore, a space is required inside the stopper piece 78 to return to a flat state after the recess edge plate 77 is bent and deformed. For this reason, the stopper piece 78 is separated from the bottom surface 28a by a certain size. Yes.

  The shape and number of the stopper pieces 78 can be set arbitrarily. The stopper piece 78 can be formed in a rib shape extending long along the inner periphery of the side recess 28, or conversely, it can be formed in a cannonball shape and a large number of the stopper pieces 78 can be arranged in a jumping manner. is there. In this embodiment, since the recess edge plate 77 is attached to the back side of the skin material 13, the inside of the side recess 28 can be exposed. As a method of fitting the recess edge plate 77 into the side recess 28, the right edge or the left edge is first fitted into the back side of the stopper piece 78 by inclining the recess edge plate 77 in plan view, and then A method of pushing in the side edge located outside the stopper piece 78 can also be adopted.

Figure (D) but using Mari write no recess rim plate 77 fitted to the side recess 28 in the third embodiment shown in (E), in this embodiment, the shape and function of the stopper piece and the second embodiment It is different from the form. That is, this embodiment has an upper stopper piece 79 provided on the upper side of the side recess 28 and a lower stopper piece 80 provided on the lower side of the side recess 28. Therefore, as shown in (E), the upper portion of the recess edge plate 77 can be inserted from below.

  The lower stopper piece 80 has the same function as the stopper piece 78 of the second embodiment, and the recess edge plate 77 is pushed toward the bottom surface 28 a so that the front and rear edge portions enter the back river of the lower stopper piece 80. In this third embodiment, when the upper portion of the recess edge plate 77 is engaged with the upper stopper piece 79 by insertion from below, there is an advantage that the projecting dimension of the upper stopper 79 can be increased (thus, it is difficult to come off). ).

(7). Others present invention can be in addition to various concrete than the above embodiment. For example , the application target is not limited to the rotary chair, and can be applied to various chairs such as a fixed chair. Moreover, it cannot be overemphasized that it is applicable also to the chair whose backrest does not rock. In the embodiment, the back plate is composed of two members, the main member and the top member, but it goes without saying that the back plate may have a single structure.

  The structure and attachment means of the edge member can be arbitrarily set. For example, it is also possible to employ a string or wire as the edge member and hook it on the hook 74 shown in FIG. 9B. Installation using hook-and-loop fasteners is also possible. When applied to the back of a chair, it is possible to open the recesses upward and downward by curling the left and right side edges of the back plate backward. In any case, the recess can be adopted in a configuration in which the recess communicates with the entire length on the left and right or the entire length on the top and bottom (in this case, since the bottom surface does not exist, the edge member is locked to the inner surface of the recess. ). The present invention can also be applied to a seat.

The present invention exhibit utility when applied to a chair. Therefore, it can be used industrially.

DESCRIPTION OF SYMBOLS 3 Backrest 10 Backboard 11 Back support 12 Back cushion 13 Skin material of back cushion 13a Overhanging part 14 Main member which comprises back board 15 Top member which comprises back board 15a Curl part 25 Edge board 26 Catch protrusion 28 Side recess 74襞 (襞, gather)

Claims (3)

It has a back plate or a seat plate and a skin material covering this from the body pressure support surface side, and the outer peripheral edge of the back plate or the seat plate is held in whole or in part by the skin material. A chair,
In the back plate or the seat plate, by forming a curled portion that is U-turned on the opposite side to the body pressure support surface, a pair of recesses that are open in the outer peripheral direction of the back plate or the seat plate is formed, In the configuration that the skin material enters the recess from the body pressure support surface side, and also enters the recess from the curl side,
An edge member that has entered the inside of the recess is attached to the skin material, and the edge member is attached to the inner surface of the recess.
Chair. The edge member is a belt-shaped resin edge plate, and a catch hole is provided in the edge plate. On the inner surface of the recess in the back plate or seat plate , a catch protrusion for fitting and removing the catch hole of the edge plate is provided. Provided,
The chair according to claim 1. The curl portion is formed at the upper end portion of the back plate and the recess is open to the left and right outside, while the back cushion and the skin material are curled to cover the curl portion of the back plate from the back, wherein the skin material is formed line-shaped darning portion extending along the side edges of the back plate through an opening edge of the recess, and at sites curled along said recess of said skin material The heel is preliminarily placed on the portion located outside the recess across the overburden portion ,
The chair according to claim 2.

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